EP 1847739 A3 20080903 - Improved ball valve and valve seat
Title (en)
Improved ball valve and valve seat
Title (de)
Verbessertes Ballventil und Ventilsitz
Title (fr)
Robinet à tournant sphérique et siège de robinet améliorés
Publication
Application
Priority
GB 0607199 A 20060410
Abstract (en)
[origin: EP1847739A2] A ball valve (10) comprising a housing (12) having an inlet (14) and an outlet (16), and a ball valve element (34) positioned within the housing (12) between the inlet (14) and outlet (16), the ball valve element (34) having a through aperture (68) and being movable between an open position whereby the through aperture (68) is aligned with the inlet (14) and outlet (16) thereby defining a fluid path through the housing (12), and a closed position whereby the through aperture (68) is not aligned with the inlet (14) and outlet (16), wherein the housing (12) is further provided with annular metal seals (74) arranged around the inlet (14) and outlet (16), which seals (74) interact with the ball valve element (34) when in the closed position, each seal (74) comprising a substantially annular base (78) having a forward face, and a flexible annular lip (80) extending from said forward face, and wherein further the ball valve element (34) is provided with opposed sealing projections (72) which contact and deflect the lips (80) of the seals (74) when the ball valve element (34) is in the closed position.
IPC 8 full level
CPC (source: EP NO)
F16K 5/06 (2013.01 - NO); F16K 5/0668 (2013.01 - EP); F16K 5/20 (2013.01 - NO); F16K 5/208 (2013.01 - EP)
Citation (search report)
- [X] US 4911407 A 19900327 - PAUL JR HERMAN L [US]
- [X] US 3954251 A 19760504 - CALLAHAN JR FRANCIS J, et al
- [X] US 3333813 A 19670801 - RABE GEORGE B
- [X] EP 0947749 A2 19991006 - XOMOX INT GMBH [DE]
- [A] DE 19945116 C1 20010523 - WELCKER F [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1847739 A2 20071024; EP 1847739 A3 20080903; GB 0607199 D0 20060517; NO 20071827 L 20071011; NO 340265 B1 20170327
DOCDB simple family (application)
EP 07251292 A 20070327; GB 0607199 A 20060410; NO 20071827 A 20070410